Slider lock



A. E. CARL ILE SLIDER LOCK Filed July 21; 1954 I 5 Fig.1.

INVENTOR. Alfred E. Carlile BY 7 i F AT ORNEYS.

email-int 8.1939 2,166,581

UNITED STATES PATENT OFFICE simian. LOCK Alfred E. Carlile, Meadville, Pa., assignor to Talon, Inc., .a corporation of Pennsylvania Application July 21, 1934, Serial No. 736,367 7 Claims. (01. 70-68) My invention relates to slide fasteners, and parform of a circular disk having one or more lockticularly to an improved slider lock to prevent ing pins l extending downwardly through suitv pilfering orunauthorized use of bags equipped able openings Ii in the slider body, and movable with slide fasteners. into a position between the interlocking members,

75 It is the object of my invention to provide a as shown in Fig. 2, and in dotted lines in Fig. 3. 5

simplified and improved lock mechanism for a These locking pins thus eifectively block the slidslider which will be effective in use. er channel and prevent any movement of the slid- Various locks for the sliders of slide fastener er. Asmall coil spring I I may be used for urging have been proposed, and some of them have been the locking member into locking position. The

used to someextent on cash bags, brief cases, key l8 has a suitable finger engaging portion and 10 and the like. In many of the locks heretofore a stem extendinginto the housing through the used and proposed, the lock mechanism was atslot ill in the locking member. The cross arm tached to the bag or other article and the slider of the key is adapted to pass through the slot carried a pivoted hasp or similar means for enwhen the key is inserted and when the key isgaging in the lock. There was a flexible connecturned, it rides up over the inclined surfaces 2| tion between the actual lock mechanism and the 'of the locking member and preferably rests in slider, which afiorded an opportunity for slipping notches 22; In this operation, the locking mem the fastener stringers through the slider and alher is lifted to unlocked position and the key lowingunauthorized opening of the fastener. snaps into the notches 22. It can then be used as According to my invention, a lock mechanism is a pull for operating the slider along the fastener 20 rigidly secured directly to the slider body so that stringers. It is more or less steadied by resting the slider itself is directly locked to the fastener in the notches 22 but it can be easily moved out members inside the slider channel. This gives no of these notches by twisting the key when it is opportunity for. any kind of manipulation exdesired to lock the slider, and remove the ky. Z cept actual destruction of the fastener or lock. It will be understood that I have illustrated 25 In the accompanying drawing, I have shown for only one simple typeof lock mechanism and that purposes of illustration, one embodiment which any suitable locking mechanism may be substimy invention may assume in practice.- In this tuted therefor.

drawing: My invention provides a compact lock mecha- Fig. 1 is a partial plan view of a slide fastener nism for a slider which is simple to make and 30 made according to my invention; which can be used in the place of the regular pull Fig. 2 is a longitudinal central section showing tab on the slider. the locking member in the locked position; While I have shown and described in this ap- 3 is a wes-Se t on ow t locking pllcation, one embodiment which my invention member in the unlocked position; may assume in practice, it will be understood that 35 4 is p r p tive view of the movable lockthis embodiment is merely for the purposes of iling member; and lustration and description, and that various other Fig. 5 shows the key. forms may be devised within the scope of my in- The fastener illustrated is of a conventional .ventlon as defined in th appended claims.

M type comprisin strin ers 6. h ving interlocking WhatI claim as my invention is: 40

members 8 on their adjacent ed es: The slider 1. A slider for slide fasteners of the type havwhichmay be of any known form, comprises a ing a pair of flexible stringers and interlocking y having n r r mh p d hannel ll members, comprising a slider body'having a guide extend n u h he l der d? r receiving channel to receive said interlocking members, a

the interlocking members. The shape of the lock housing attached directly to the front face of-4 slider channel and operation of the interlocking the slider body, a locking member wholly within members in pas in t ouzhth slid r is wel said housing and adapted to enter the channel. understoed and will n b further b and engage between interlocking members, and The lock mechanism comprises 8 h usin ll means separate from the locking member and rigidly secured to the front face of the slider body extending through the housing for manually con- 50 by any suita l means. su h as t ng devices trolling the operation of said locking member to indicated at II. The lock housing has an inlock or unlock the slider, said-means also serving terior recess It in which is movably mounted the as a pull tab for the slider when unlocked. locking member I. This member as shown in an 2. A slider for slide fasteners of the type having 7 invu'tedpolitiminl'lg.4,maybeinthegeneral flexible-stringers and interlocking memberson body having a guide channel to receive interlooking members, and a lock mechanism for locking the slider on said interlocking members including a housing immovably secured to the front face of the slider body, a relatively movable locking member enclosed within said housing adapted in one position to have locking engagement with the interlocking members within the slider channel and in another position to be disengaged from said interlocking members, and a lock controlling member separate from said locking member and projecting through said housing.

4. A slider for slide fasteners comprising a slider' body having a guide channel to receive interlocking members and a key controlled lock mechanism for locking the slider on said interlocking members, comprislng'a housing immovably secured to the front face of said slider body and a relatively movable locking member enclosed within said housing having a pin adapted to enter the slider for blocking said channel in one position,

and said locking member having means within said housing cooperable with a key which may be inserted into said housing to move said locking member outwardly from said slider channel to release the slider.

5. A slider for slide fasteners of the class described, comprising a slider body having a channel to receive the interlocking members and a lock mechanism rigidly secured to the slider comprising a locking member movable relatively to the slider and having means projecting into the slider channel to engage or disengage the members in the different positions oflthe locking member, a spring for normallyholding said locking member in locked position, a lock controlling member, said lock controlling member and locking member having cooperable engaging portions for positively moving said locking member to released position.

'6. A slider for slide fasteners 01 the class described, comprising a. channel to receive the interlocking members, a lock housing rigidly se- ,cured to the slider body, a locking member movable within said housing-to locked and unlocked position, said lockingmember having a cam and a lock controlling member with a cooperating cam engaging portion, said lock controlling member projecting from said housing and having means for manual operation to cause positive release of said locking member.

'7. A locking device for multiple fasteners, inl eluding a slider body, a casing forming part of 

